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RE: [Xen-users] Very Strange network problem

  • To: "chris" <tknchris@xxxxxxxxx>
  • From: "Ian Tobin" <itobin@xxxxxxxxxxxxx>
  • Date: Fri, 26 Mar 2010 15:31:38 -0000
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 26 Mar 2010 08:32:47 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcrM7NhqDxpL6aD2RumJABr0ZJDi/wADAjCg
  • Thread-topic: [Xen-users] Very Strange network problem


Yes using bridged networking.  Strangely if i ping another host on the same 
network (pinging router doesn't work) from the dom0 console and leave it 
pinging the network stays up even after rebooting domUs.

As soon as i stop the ping and reboot the DomU the network stays off but the 
domU has network.  If I reboot the dom0 and reboot a domu say 5 times its fine, 
anymore and it starts to drop until i start the ping or reboot the dom0.

Its very odd, did you find a permanent fix? Obviously i can leave the ping 
running but its certainly not a solution.



-----Original Message-----
From: chris [mailto:tknchris@xxxxxxxxx] 
Sent: 26 March 2010 14:02
To: Ian Tobin
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Very Strange network problem

Are you using bridged networking by chance? I had seen something like
this on lenny where sometimes when I restarted or shutdown a domain
the host networking would drop out for about 15-30 seconds and I
always assumed it must be something related to the bridging.

- chris

On Fri, Mar 26, 2010 at 6:52 AM, Ian Tobin <itobin@xxxxxxxxxxxxx> wrote:
> Hi,
> This is a weird one.
> Im, running Lenny with xen 3.4.2 on pv_ops kernel.
> If I reboot my hvm guests so many times (7 i think) i then lose network
> connectivity to the main host (dom0)
> All other DomUs are unaffected.  So far the only way i can get it back is to
> reboot the dom0 but this isn't obviously not a fix.  Has anyone else had
> this issue?
> Thanks
> Ian
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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